6300 Series ball bearings feature honed deep grove raceways that are capable of operating under radial, thrust or combination loads. Featuring metric dimensions, the 6300 Series comes in common bore sizes with larger a outer diameter than the 6200 series to accommodate higher dynamic and static loads. This bearing comes pre-lubricated with grease and is available with rubber seals (-2RS) Interchange: 2RS Sealed; ZZ Shielded; 6303-2RS; 6303-ZZ; 6303RS; 6303ZZ; 63032RS; 6303Z; 6303LLU; 6303-2Z; 303PP; 303SS; 6303DDU; 6303KDD" (2 Pack) 6303-ZZ, 6303-2Z, 303SS Shielded Radial Ball Bearing 17X47X14 by SpinCo